<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="">
<table><!-- 建立两行两列的表格，方便对齐 -->
	<tr>
		<td>用户名: </td>
		<td><input type="text" id="userName" name="userName"/> </td>
	</tr>
	<tr>
		<td>密码:</td>
		<td><input type="password" id="passWord" name="passWord"/></td>
	</tr>
	<tr>
		<!-- 这种登录是提交数据到后台 -->
		<td><input type="submit" value="登录"></td>
		<!-- 普通按钮 -->
		<td><input type="button" value="提交"></td>
	</tr>
</table>
</form>
</body>
</html>